The intent in this case is clear. They are trying to increase the black and hispanic population. A worthy goal that comes at a discriminatory price.
This particular writer is a fairly active anti-asian academic. She and a colleague of hers in the gender/cultural studies department are two of the primary apologists of anti-asian discrimination in affirmative action.
Lotteries are not evil. They are just a stupid way of selecting for academic merit. And when you go from a reasonably good way of selecting for academic merit to a stupid way and the end result is a tradeoff of 4 fewer asian students to achieve an increase of 1 black student 1 hispanic student and 2 white students, it is discriminatory against asians.
What arguments have you made again?